If r={(x, y)|x^2+y^2=a^2} is a relation then its inverse r'={(x, y)|y^2+x^2=a^2} would be same as r, why is that, can someone please explain it with detail.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

answer:   c ?

step-by-step explanation:

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